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我县历年花生播种面积30万亩左右,占耕地面积的三分之一以上,是全省花生生产重点基地县之一。但是,因花生大部分布局在山岭梯田上,土层瘠薄、保水保肥力差,水源缺乏,因而干旱成为影响花生产量的重要限制因素。从推广喷灌技术以来,引起了普遍地重视。为了探讨喷灌在花生生长发育中的作用及增产效果,找出山岭梯田上花生的需水量和灌水量的有关指标,寻求各生育期适宜的土壤含水率为花生的合理用水和喷灌系统的规划设计提供科学依据,在1978、1979两年,我们在自然条件下,人为地造成了不同的干旱情况,进行定时、定点的观察和试验研究,现将试验结果整理如下,以供参考。
Over the past year my county peanut sown area of 30 acres, accounting for more than one-third of the cultivated area, is the province’s peanut production base of one of the key counties. However, most of the peanut layout on the mountain terraces, barren soil, poor water and fertility, lack of water, so drought has become an important limiting factor on peanut production. From the promotion of sprinkler irrigation technology, has attracted widespread attention. In order to explore the role of sprinkler irrigation in the growth and development of peanut and the effect of increasing yield, to find out the indicators of peanut water demand and irrigation volume in mountain terraces, and to seek the appropriate soil water content in each growth period for the rational use of water and the planning and design of sprinkler irrigation system To provide a scientific basis, in 1978 and 1979, we created different man-made drought conditions under natural conditions. We conducted regular and fixed observation and experimental studies. The results of the tests are summarized below for reference.